Home / 339,472.06-509,208.75-126,286.72

Finding the Fourth Proportional to 339,472.06, 509,208.75 and 126,286.72

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Solution

The fourth proportional to 339,472.06, 509,208.75 and 126,286.72 is: 189,430.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,472.06 : 509,208.75 = 126,286.72 : x
  2. Step 2: Convert to fraction form
    339,472.06/509,208.75 = 126,286.72/x
  3. Step 3: Cross multiply
    339,472.06x = 509,208.75 × 126,286.72
  4. Step 4: Simplify right side
    339,472.06x = 64,306,303,347.11
  5. Step 5: Solve for x
    x = 64,306,303,347.11/339,472.06
  6. Step 6: Final answer
    x = 189,430.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.